Home / 5,178,904.52-7,145,638.38-3,342,969.61

Finding the Fourth Proportional to 5,178,904.52, 7,145,638.38 and 3,342,969.61

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Solution

The fourth proportional to 5,178,904.52, 7,145,638.38 and 3,342,969.61 is: 4,612,491.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178,904.52 : 7,145,638.38 = 3,342,969.61 : x
  2. Step 2: Convert to fraction form
    5,178,904.52/7,145,638.38 = 3,342,969.61/x
  3. Step 3: Cross multiply
    5,178,904.52x = 7,145,638.38 × 3,342,969.61
  4. Step 4: Simplify right side
    5,178,904.52x = 23,887,651,948,389.63
  5. Step 5: Solve for x
    x = 23,887,651,948,389.63/5,178,904.52
  6. Step 6: Final answer
    x = 4,612,491.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.